Bioremediation　has　drawn　widespread　concern　in　passivating　heavy　metals,　but　the　intense　toxicity　of　heavy　metals　to　biological　cells　limits　the　application　of　functional　strains.　Herein,　goethite-modified　biochar　(GMB)　was　chosen　as　the　carrier　to　immobilize　phosphate-solubilizing　bacteria　(PSB)　of　strain　L1　for　lead　and　cadmium　remediation.　Batch　experiments　showed　that　the　GMB-L1　possessed　excellent　adsorption　performance　with　a　maximum　adsorption　of　496.54　and　178.18　mg/g　for　Pb　and　Cd,　respectively.　Moreover,　adding　GMB-L1　in　contaminated　soil　converted　heavy　metals　(Pb　and　Cd)　into　more　stable　fractions　and　reduced　TCLP-extracted　heavy　metal　concentrations　(73.24%　of　Pb　and　57.25%　of　Cd).　The　GMB-L1　was　proved　to　accomplish　Pb　and　Cd　remediation　via　the　process　of　chemical　precipitation,　surface　complexation,　electrostatic　attraction,　and　biomineralization,　which　was　accompanied　by　the　transformation　of　heavy　metals　into　a　more　stable　crystal　structure,　such　as　Pb5(PO4)3OH　and　Cd5(PO4)3OH.　Therefore,　the　co-system　of　GMB　and　strain　L1　could　be　regarded　as　a　prospective　option　for　efficiently　remedying　environmental　heavy　metal　pollution.　©　2024　by　the　authors.